2012-05-18

HR0656 - U798

Published Details for Benchmark: HR0656
N 37° 07.117
W 119° 59.417 (NAD 83)
Altitude: 406.1
Coordinates may not be exact. Altitude is VERTCON and location is SCALED.

Location: In MADERA county, CA
Designation: U 798
Marker Type: bench mark disk
Setting: light structures
Stability: Mark of questionable or unknown stability.

Documented History (by the NGS)
01/01/1947 by CGS (MONUMENTED)

01/01/1972 by NGS (GOOD)
DESCRIBED BY NATIONAL GEODETIC SURVEY 1972 10.4 MI SW FROM RAYMOND. 7.1 MILES SOUTH ALONG COUNTY ROAD 600 FROM THE POST OFFICE AT RAYMOND, THENCE 3.35 MILES WEST ALONG COUNTY ROAD 603, 0.4 MILE WEST OF THE JUNCTION OF A DRIVEWAY NORTHWEST TO DAULTON RANCHHOUSE, IN THE TOP OF THE SOUTH CONCRETE HEAD WALL OF A 36-INCH PIPE CULVERT, 15.7 FEET SOUTH OF THE CENTER LINE OF THE ROAD, 3.0 FEET EAST OF THE WEST END OF THE HEAD WALL, AND ABOUT 2 1/2 FEET HIGHER THAN THE ROAD. SEC27, T9S, R18E.

Found Details for Benchmark: HR0656
N 37° 17.151
W 119° 59.444 (WGS 84)
Elev: 414
Found USC&GS mark stamped 'U798 1947' at 18:45, 18 May 2012 as described and in good condition. Go to description is adequate. The mark has been defaced somewhat. The mark shows many small divots on its face, making the designation difficult to read.

Published NAD83 coordinates are located about 245 feet southeasterly of the found WGS84 coordinates. WGS84 coordinates for the mark found by 4 minute occupation with 8 strong satellites and 2 WAAS satellites.

HR0656 "U798 1947" - Benchmark detail.
HR0656 "U798 1947" - Benchmark and the GPSr.
HR0656 "U798 1947" - Benchmark setting on top of the headwall, about 3 feet east of the west end.